JP7032106B2 - Label for sticking, label sticking method, torque sensor shaft manufacturing method and shaft manufacturing equipment - Google Patents

Description

The present invention uses a label body having a hole to be attached to the surface of the work, a label attaching method for attaching the label body to the surface of the work, and a torque sensor shaft using the attaching method. It relates to a manufacturing method and manufacturing equipment.

FIG. 13 shows a general structure of a torque sensor that detects torque using a shaft having a magnetostrictive portion. A shaft (torque sensor shaft) 1 "that receives torque is supported by the housing 7 via a bearing 6, and a magnetostrictive portion 1V / 1W is formed on a part of the surface of the shaft 1 "on the entire circumference (360 °). There is. Further, the coils X and Y are arranged at positions close to the outer circumferences of the magnetostrictive portions 1V and 1W inside the housing 7. As the magnetostrictive portion 1V / 1W, a magnetic material is formed on the peripheral surface of the shaft 1 "in a spiral (so-called chevron-like) striped pattern inclined in opposite directions with respect to the axial direction as shown in the figure (that is,). Generally, the magnetic film or the protrusion is formed as a plurality of spiral lines). The housing 7 is also provided with an amplifier board 8 and a connector 9 for a signal line as shown in the figure. ..
When torque acts on the shaft 1 ", tensile stress and compressive stress are generated in the magnetostrictive portions 1V and 1W, respectively, and as a result, the magnetic permeability of each magnetostrictive portion 1V and 1W increases and decreases due to the contradictory magnetostrictive effects. Since an induced electromotive force is generated in the coils X and Y based on this change in magnetic permeability, a voltage output proportional to the magnitude of torque can be obtained by performing DC conversion and differential amplification of both.

When the magnetostrictive portion formed on the surface of the shaft of the torque sensor is a film of metallic glass (amorphous alloy), the torque detection sensitivity becomes high because the film has high magnetic permeability and high magnetostriction. Further, in order to form the metallic glass film on the surface of the shaft easily and quickly and so as to have high adhesion to the shaft, it is preferable to use a thermal spraying method of a method of rapidly cooling a flame or the like.

Patent Document 1 describes a method and equipment for manufacturing a torque sensor shaft by forming a magnetostrictive portion including a metallic glass film in a predetermined pattern on the surface of a shaft-shaped workpiece to be a torque sensor shaft. The shaft-shaped work rotatably mounted on the transport pallet is preheated and then moved to the front of the above-mentioned quenching type thermal spraying device, where a metallic glass film is formed by thermal spraying on the surface of the work. After that, a covering material formed in a pattern corresponding to the above-mentioned striped pattern is adhered on the film by a masking device, and then shot blasting is performed toward the metallic glass film with the covering material. Due to shot blasting, a metallic glass film remains only in the portion covered with the covering material, and the film in the uncovered portion disappears. As a result, a striped (for example, chevron-like) metallic glass film is formed and the above-mentioned magnetostriction is formed. Become a department.

As a masking device for forming a covering portion on the surface of the work as described above, in the device of Patent Document 1, a device for transferring rubber or resin as a covering portion in a semi-solid state like ink is used. .. That is, the covering material is subjected to the above-mentioned striped pattern by using an ink kakiage roll, a gravure plate roll having a concave portion engraved on the peripheral surface, a scraper used for the gravure plate roll, and a transfer roll that is brought into contact with the work surface. It is transferred to the surface of the work so as to have a pattern corresponding to.

Japanese Unexamined Patent Publication No. 2016-217888

When the metallic glass film is masked using the above-mentioned masking device and then shot blasted with the shot blasting device, a striped magnetostrictive portion made of the metallic glass film can be formed as described above. However, when masking is performed by the above method using the apparatus, it is difficult to form the striped pattern of the metallic glass film as having a sharp pattern with high shape accuracy. When a semi-solid rubber or the like is used as the covering material, the thickness of the covering material is not uniform at the outer edge (boundary) of the covering pattern, and the outer part (near the boundary) is thinner, so that the masking boundary is This is because it is not clear. If the shape accuracy of the metallic glass film cannot be sufficiently improved, it becomes difficult to maximize the accuracy of torque detection in a small torque sensor shaft or the like, and the performance tends to vary.

In order to provide a covering material on the work surface so that a sharp pattern with clear masking boundaries is obtained, a label of a certain thickness formed in a predetermined pattern is used instead of transferring semi-solid rubber or the like. It is preferable to attach it. When a label is used to form a magnetostrictive portion of a torque sensor shaft, it is natural to use a label having a striped pattern (such as a chevron shape), that is, a label with an adhesive having a plurality of holes as described above.

However, it is actually not easy to attach a label with holes to the work as a masking sheet. Generally, a label for sticking is attached by carrying the label body peeled off from the mount to the position of the work and pressing it against the surface of the work, but the shape such as a striped pattern tends to collapse during handling after peeling from the mount. Because. In addition, it is common practice to adsorb labels by negative pressure suction means for automation of handling, but it is also difficult for labels with holes to be adsorbed after the mount is peeled off .
Such challenges in affixing perforated labels to the surface of a workpiece do not only exist when masking for shot blasting with respect to the manufacture of torque sensor shafts. In many cases, including the process of moving the label body with the mount peeled off and removed while adsorbing, it is a cause of hindering smooth sticking of the label body.

The present invention solves the above-mentioned problems, and makes it possible to smoothly and accurately carry out the process of attaching a label with holes to a work by an automatic machine or the like, a sticking label thereof, a sticking method thereof, and the label thereof. Is used as a masking sheet for shot blasting to provide a manufacturing method and manufacturing equipment for a torque sensor shaft.

The sticking label of the present invention has a label body having adhesiveness on the lower surface and being attached to the surface of the work, and a mount laminated on the lower surface, and the label body is peeled off from the mount and is subjected to a suction device. A label for sticking that is adsorbed and moved and is used as a sticker to be stuck on the surface of a work, and the above-mentioned label body is
-There is a hole leading between the front and back, and the above mount (which may or may not have a hole) is layered on the bottom surface and
-It is characterized in that a surface film having no holes is laminated on the upper surface and adhered.
FIG. 1 shows an example of such a sticking label. In FIG. 1, reference numerals 101, 102, and 103 are a label body, a mount, and a surface film, respectively. The "upper surface" and "lower surface" in the above are convenient indications for distinguishing each of the two surfaces in the label body, and the upper and lower surfaces in FIG. 1 (b) are referred to as "upper surface" and "lower surface", respectively. Represents (not always used with the "top" vertically above).
Since such a label for sticking according to the invention has a hole through which the label body to be stuck on the surface of the work is connected between the front and back sides, after the mount is peeled off for sticking, it is usually deformed and the hole is formed. Often the shape of the label collapses and the accuracy of the shape and dimensions deteriorates. Even if the label body is sucked and handled by a suction device (negative pressure suction means), smooth suction is normally difficult due to the holes. However, in the present invention, since the label body is formed by stacking and adhering a surface film having no holes on the upper surface, such inconvenience does not occur. If the surface film is given appropriate strength (rigidity, waist strength), the shape of the label body will not be deformed even after the mount is peeled off, and the accuracy of the shape and dimensions will be maintained. Further, as long as the surface film does not have holes, the label body can be smoothly adsorbed and handled by the adsorption device.

Regarding the above labels for sticking, especially
-The label body is a masking sheet that covers a part of the surface of the work to be shot blasted and is not removed (dissipated) by the shot blasting. It has streaky punched holes (holes punched by a press),
-It is preferable that the surface layer film can hold the shape of the hole in the label body before being attached to the surface of the work and is removed by the shot blast.
Such a sticking label is preferable as a masking sheet for shot blasting to be stuck on the surface of a work so that a plurality of parallel streaky holes are used as a shot area. The reason is as follows.
In the label body having a plurality of streaky holes as described above, since the streak holes and the streak members (flesh part) of the label body are alternately present, the shape of the holes is originally formed. Is extremely deformable, and it is difficult to maintain the accuracy of the shape and dimensions. However, if the surface film can cause the label body to retain the shape of the hole as described above, such inconvenience can be prevented. Further, if the surface layer film is to be removed by shot blasting, it is not necessary to remove the film before the start of shot blasting. If shot blasting is performed as it is, the inner area of the hole of the label body is exposed, while the area covered with the meat part of the label body is protected, so that the above-mentioned plurality of streaky holes are accurately used as the shot area. be able to. Moreover, if those holes are punched holes formed by a press, the thickness is uniform even at the peripheral portion of the holes, so that the masking boundary can be clearly defined.

The label body is made of rubber or resin having a thickness of 0.1 to 1.0 mm, the surface film is made of PP having a thickness of 5 to 50 μm, and the mount can be peeled off. It is particularly preferable that it is made of PET having a thickness of 50 to 100 μm and having a coating.
The mount is smoothly peeled off from the label body, the label body is easily adsorbed by the suction device, handled so as not to break the shape with holes, and the label body is securely attached to the surface of the work having various shapes such as a cylinder. In order to attach the label, the thickness and material of the label body, surface film, and mount must be appropriate. If either is too thick or too hard, or conversely too thin or too soft, it cannot be handled smoothly. It is also necessary that the label body is not removed by shot blasting and the surface film is removed. The combination of material and thickness described above enables the smooth implementation of each such operation.

The above mount has the same holes as the above label body (those with the same shape and dimensions that can be passed between the front and back), and a PP lining reinforcing film with a thickness of 5 to 50 μm is layered on the underside and adhered. It is also preferable to make it. The lining reinforcing film is indicated by reference numeral 104 in the example of FIG.
It is generally easier to manufacture a label for sticking if the mount and the label body have the same holes. This is because when making a hole in the label body, if the same hole is made in the mount at the same time by punching, a hole in the label body can be easily and accurately formed. However, if the mount also has holes, the mount after being peeled off from the label body is likely to be deformed or wrinkled, so that it tends to be difficult to collect it by winding or the like. In that respect, if the backing reinforcing film as described above is laminated on the mount, the mount is not easily deformed even after being peeled off from the label body, and therefore it is easy to facilitate the subsequent handling.

In the label affixing method according to the invention, the mount is peeled off from the affixing label and removed, and the label body having the surface layer film on the upper surface is adsorbed from the side of the surface layer film by an adsorption device, and the label is adsorbed. It is characterized in that it is attached to the surface of the work by moving it on the surface of the work together with the suction device.
If such a method is adopted, the label body can be smoothly handled and efficiently attached to the surface of the work. Although the label body has holes, the surface layer film that does not have holes is stacked on the upper surface, so it can be easily adsorbed by the suction device, and the shape of the holes collapses even after being separated from the mount. This is because it is moved without being left and attached to the surface of the work.
Note that FIGS. 5 and 6 show an example of an apparatus for carrying out the above-mentioned labeling method. In the figure, reference numeral 61 is a portion for peeling the label main body 101 from the mount 102, and reference numeral 62 is a portion for sucking the label main body 101 and moving the label main body 101 to the surface of the work 1 in a sucked state for sticking.

The above pasting method is especially
1) When the work is a shaft-shaped work rotatably supported by a support machine and the surface to which the label body is attached is a cylindrical surface.
2) The suction device keeps the label body flat and sucks it, and presses a part of the label body against the cylindrical surface of the work.
3) When a part of the label body is pressed against the surface (cylindrical surface) of the work, the support machine supports the work, and the flat surface of the label body is perpendicular to the axis of the column surface. While moving in a direction parallel to (including the case where the label body moves with respect to the support machine), the work is rotated so that the cylindrical surface rolls without slipping with respect to the label body. It is meaningful.
Also in the apparatus shown in FIG. 5, the work is axial and the sticking surface of the label body is a cylindrical surface. When the suction device sucks the label body and presses a part against the cylindrical surface, the support machine of the work moves in the direction perpendicular to the paper surface of FIG. 5 and rotates the work as described above, thereby causing the cylindrical surface. Attach the label body to.
As described in 1) above, the work is a rotatable shaft and the sticking surface of the label body is often a cylindrical surface. In such a case, it is better to follow the steps 2) and 3) above in order to attach the label body securely and smoothly. If the suction device deforms the label body to the same curved surface as the cylindrical surface of the work and adsorbs it, it is not easy to adsorb it and there is a risk that air will be caught between the surfaces when it is attached to the surface of the work. There is. Further, if a suction device or the like bends the label body and attaches it to the cylindrical surface after pressing a part of the label body kept flat against the surface of the work, the mechanism for bending the label body becomes complicated. It costs money. However, if the above steps 2) and 3) are taken, such inconvenience does not occur, and the label body can be attached reliably and smoothly with a simple operation.

In the above-mentioned sticking method, the support machine has another cylindrical surface having the same diameter (it is better to consider the thickness of the label body) on the same axis as the cylindrical surface of the work. When a part of the label body is pressed against the surface of the work according to the above 2), the other cylindrical surface comes into contact with the fixing member, and while the support machine moves as in the above 3), the fixing member is pressed. On the other hand, it is preferable to take a method in which the support machine rotates with the work as the other cylindrical surface rolls.
The other cylindrical surface described above and the fixing member pressed against the cylindrical surface are exemplified as reference numerals 1x and 68 in FIGS. 5 and 6, respectively. If the two cylindrical surfaces are on the same axis and have the same diameter, the rotation speed of the work due to the different cylindrical surfaces rolling on the fixing member becomes appropriate, and the label main body is attached. The cylindrical surface rolls on the label body without slipping. 5 to 7 illustrate the configuration and procedure for that purpose.
In order to rotate the work while the support machine moves as in 3) above, it is also possible to deploy a motor or the like on the support machine to drive the work at an appropriate rotation speed. However, if the support machine is provided with another cylindrical surface and the fixing member is pressed against it as described above, the support machine is simply moved as described above (or conversely, the label body is moved together with the fixing member). The work can be rotated at an appropriate speed. In that case, it is not necessary to control the rotation speed without requiring a special rotation drive source.

Regarding the above sticking method, as a sticking label,
-The above label body is a masking sheet that covers and protects a part of the surface of the work to be shot blasted.
-It is preferable to use the above-mentioned surface film that is removed by the above-mentioned shot blasting.
When the above-mentioned sticking method is performed using such a sticking label, masking for shot blasting can be smoothly performed on the surface of the work.

In manufacturing the torque sensor shaft,
-As the above work, use a shaft-shaped work in which a metallic glass film is formed on the cylindrical surface.
-As the above-mentioned label for sticking, a label whose main body has a plurality of streaky punched holes extending in parallel is used.
-After attaching the label body to the cylindrical surface of the work by the label attaching method described above,
-By performing shot blasting on the cylindrical surface to which the label body is attached, the metal glass film may be formed into a plurality of streaky patterns extending in parallel.
By doing so, the attached label body serves as a masking sheet for shot blasting, and a preferable torque sensor shaft having a streaky (having a pattern such as a so-called chevron-like striped pattern) metallic glass film is manufactured. Can be done.

The manufacture of torque sensor shafts is especially
-The above-mentioned thermal spraying in the above-mentioned work is performed by spraying a flame containing metal powder from a thermal spray gun to melt the metal powder and cooling the flame with a cooling gas from the outside before it reaches the surface of the work. By performing on a columnar surface, the above metallic glass film is formed,
-It is preferable that the label body is attached to the cylindrical surface on which the film is formed, and then shot blasting is performed on the cylindrical surface. 11 and 12 show an example of a device for performing thermal spraying by a flame quenching method using a cooling gas as described above.
When thermal spraying of a flame quenching method using a metal powder of an appropriate component system as a raw material and using a cooling gas as described above is performed on the cylindrical surface of a shaft-shaped work made of metal or the like, a metallic glass film directly adheres to the surface. Can be formed. When the metallic glass film is striped by performing shot blasting on such a surface as described above, the shaft and the metallic glass film are highly integrated, so that a torque sensor shaft having high torque detection characteristics can be manufactured.

To perform the above-mentioned method for manufacturing the torque sensor shaft,
-A thermal spraying device that sprays a flame containing metal powder from a thermal spray gun to melt the metal powder and cools the flame with cooling gas from the outside before it reaches the surface of the work (Fig.) 11. See Fig. 12) and
-A device for attaching the label body to the surface of the work on which the thermal spray coating is formed (see FIGS. 5 and 6), and
It has a device (see FIG. 10) that performs shot blasting on the cylindrical surface to which the label body is attached.
-It is preferable to use a manufacturing facility having a configuration in which these devices are connected by a transfer device (see FIG. 9) for moving the work between the devices in that order. An example of the overall arrangement of the manufacturing equipment is shown in FIG.
In the case of the above equipment, a metallic glass film is directly formed on the surface of the work by thermal spraying, a label body to be used as a masking sheet is attached to the surface, and then shot blasting is performed to make the film into a striped torque sensor shaft. Can be sequentially and efficiently manufactured by moving the workpieces with the above-mentioned transport device.

The sticking label of the present invention makes it possible to smoothly and accurately carry out the work of sticking the label body with holes to the work by an automatic machine or the like. If the thickness and material of the label body and surface film are set appropriately, it is also suitable for use as a masking sheet for shot blasting. Further, if the backing reinforcing film is laminated on the lower surface of the mount and adhered, the mount after being peeled off from the label body is not easily deformed, so that the handling of the mount can be facilitated.
According to the label affixing method of the present invention, the label body having holes can be smoothly handled by a suction device or the like so that the shape or the like does not collapse, and can be accurately and efficiently affixed to the surface of the work. When the work is axial, a part of the label body is pressed against the cylindrical surface of the work, and the work is moved and rotated so that the cylindrical surface rolls without slipping with respect to the label body. The label body can be smoothly attached to the cylindrical surface with a simple operation. In that case, another cylindrical surface having the same diameter as the cylindrical surface of the work is provided on the support machine that holds the work and rotates together, and when the work and the support machine are moved, the cylindrical surface is rolled with respect to the fixing member. This eliminates the need for special rotational drive sources or control means. The pasting method of the present invention can also be used for pasting a masking sheet for shot blasting.
In the method for manufacturing a torque sensor shaft according to the invention, the label body attached to the shaft-shaped workpiece serves as an appropriate masking sheet for shot blasting, and a preferable torque sensor shaft having a streaky metallic glass film on the shaft surface can be manufactured. .. In particular, if the flame quenching method of thermal spraying is performed on the cylindrical surface of the work using a metal powder having an appropriate component system as a raw material, a torque sensor shaft having high torque detection characteristics can be efficiently manufactured.
By using the torque sensor shaft manufacturing equipment according to the invention, it is possible to efficiently mass-produce the torque sensor shaft by sequentially and efficiently performing thermal spraying, masking, shot blasting, etc. on the surface of the work.

It is a figure which shows the sticking label 100 which is an Example of the invention, FIG. 1 (a) is a plan view, and FIG. 1 (b) is a cross-sectional view thereof. It is an external view which shows the sticking label 100 in the state which is wound in a coil shape. It is a conceptual diagram which shows the manufacturing procedure of the sticking label 100. Each of FIGS. 4A to 4D is a schematic diagram showing a process of turning a shaft-shaped work 1 into a torque sensor shaft 1'. It is a side view which shows the masking apparatus 60 and the like which perform the work of attaching the label main body 101 which is a masking sheet for shot blasting to the work 1. FIG. 5 is an enlarged side view showing the main part of the masking device 60 of FIG. 5 and the details of the work 1 and the support machine A2. It is a flowchart which shows the operation procedure of a masking apparatus 60 and the like. It is a top view which shows the whole arrangement about the manufacturing equipment of a torque sensor shaft. 2A is a front view, FIG. 2B is a side view, and FIG. 2C is provided on the transfer pallet A and the transfer device B. It is a layout drawing of the magnetic poles in the magnet coupling. It is a side view which shows the shot blasting apparatus 30 and 70. It is a side view which shows the thermal spraying apparatus 40. It is a detailed view which shows the thermal spraying gun 47 in the thermal spraying apparatus 40. It is a vertical sectional view which shows the general structure of a torque sensor.

An embodiment of the invention is shown below.
FIG. 1 is a plan view (FIG. 1 (a)) and a cross-sectional view (FIG. 1 (b)) of the sticking label 100. The sticking label 100 is a label body 101 used as a masking sheet for shot blasting stacked on a mount 102. The label body 101 is attached to a shaft-shaped work 1 (see FIG. 4 and the like) as a masking sheet in the manufacturing process of the torque sensor shaft (see FIG. 13) to form a masking sheet. It has strong adhesiveness on the downward surface. On the other hand, the upper surface of the mount 102 is coated with a coating that facilitates peeling from the label body 101.
The mount 102 is a long strip that is continuous in the left-right direction of FIG. 1 (a), and has a rectangular outer shape on one side surface (upward surface of FIG. 1 (b)) of the mount 102. A large number of main bodies 101 are arranged with a gap of several mm between them and adjacent ones. Since each of the label bodies 101 is used for the purpose of forming a bidirectionally inclined striped metallic glass film as a magnetostrictive portion (reference numeral 1V / 1W in FIG. 13) in the torque sensor shaft, they are parallel to each other as shown in the drawing. It has a plurality of elongated streaky holes 101a (holes leading between the front and back sides). The holes 101a are formed in two rows with different orientations of 90 ° so that when wound around the surface of the shaft, they form two sets of spiral stripes (so-called chevron patterns) that incline in opposite directions. ing. On both sides of the mount 102, holes 102a used for positioning when punching the label main body 101 and as a feed guide for the sticking label 100 are provided at equal intervals.

In order to mass-produce the torque sensor shaft, it is necessary to handle the label body 101 with automatic machinery and accurately attach the label body 101 to the masking target portion of the work 1 one by one. For that purpose, it is preferable to hold and move the label main body 101 with a suction device of a negative pressure suction type and attach it to the target location. However, since the label body 101 shown in the figure is formed by having a plurality of holes 101a close to each other, it is difficult to adsorb the label body 101 after it is separated from the mount 102, and the outer shape and the shape and dimensions of the holes 101a are destroyed. Very difficult to handle without.
Therefore, as shown in FIG. 1B, the surface layer film 103 is superposed on the upper surface of the label body 101, that is, on the surface opposite to the surface overlapped with the mount 102, and adhered (slightly adhered). By doing so, the label main body 101 can be easily sucked by the suction device even after being separated from the mount 102, and the outer shape and the shape and dimensions of the hole 101a can be maintained.

In this example, the same hole as the hole 101a provided in the label main body 101 is also formed in the mount 102. This is because the label body 101 and the mount 102 are punched out at the same time to form the hole 101a. Since the plurality of holes are opened close to each other, the mount 102 is also liable to lose its shape or tear after being peeled off from the label body 101, so that it may be difficult to recover by winding or folding. ..
Therefore, the backing reinforcing film 104 is also laminated on the lower surface of the mount 102 (that is, the surface opposite to the label main body 101) to be adhered (slightly adhered). As a result, the mount 102 after the label body 101 is separated can also be prevented from being deformed or damaged, and smooth handling can be realized.

The label body 101 is used as a masking sheet when a part of the metallic glass film formed on the surface of the work 1 as the torque sensor shaft is removed by shot blasting. Therefore, it is necessary to have strength (durability) and adhesive strength that are not removed during the shot blasting. Further, since the surface film 103 laminated on the upper surface of the label main body 101 is used without being separated from the label main body 101, it needs to be dissipated in a short time by shot blasting.
In consideration of such a point, in this example, each sheet / film of the sticking label 100 is made of the following materials. That is,
Label body 101: Vulcanized rubber (strong adhesiveness). Thickness 0.5 mm.
Mount 102: PET separator. Thickness 75 μm.
Surface film 103: PP (slightly adhesive). Thickness 20 μm.
Lining reinforcing film 104: PP (slightly adhesive). Thickness 20 μm.

The appearance of the sticking label 100 is shown in FIG. A large number of label bodies 101 and the like are arranged side by side on the strip-shaped mount 102 and adhered to the strip-shaped mount 102, and the label body 101 and the like are wound in a roll shape as shown in the figure. The mount 102 is unwound from such a roll, and the label main body 101 (the one having the surface layer film 103 on the upper surface) is peeled off one by one from the unwound mount 102 and attached onto the metallic glass film of the work 1. Used as a masking sheet.

The manufacturing procedure of the sticking label 100 configured as described above is as shown in FIG. That is,
1) With respect to the sheet (see the left part in FIG. 3) in which the band-shaped label body 101 (before the shape and dimensions of the masking sheet) is layered and adhered on the band-shaped mount 102. The punching press is performed by the die 111. As a result, a plurality of streaky holes 101a corresponding to the above-mentioned striped pattern are formed so as to penetrate both the label main body 101 and the mount 102 (see the external view in the middle and upper part of FIG. 3).
2) After that, the strip-shaped surface layer film 103 is superposed on the upper surface of the label main body 101, and the strip-shaped backing reinforcing film 104 is superposed on the lower surface of the mount 102, and slightly adhered to the label main body 101 and the mount 102, respectively. The width of the surface layer film 103 and the backing reinforcing film 104 is narrower than the width of the mount 102 and wider than the width of the label main body 101 after completion (states of FIGS. 1 and 2).
3) A half-cut (pinnacle) that makes a cut between the film 103 and the label body 101 by pushing down the blade tool 112 called the pinnacle from the surface of the surface film 103 by the total thickness of the film 103 and the label body 101. Remove).
4) Along the cut made by the above half-cut, the unnecessary part, that is, the part between each label body 101 in the completed state (the outer shape is made rectangular) and the so-called residue part remaining on both sides are removed. As a result, the strip-shaped backing reinforcing film 104 is provided on the lower surface of the strip-shaped mount 102, and a large number of laminated bodies of the rectangular label body 101 and the surface layer film 103 are arranged on the upper surface of the mount 102. The sticking label 100 (see the external view of the upper right part of FIG. 3 and FIG. 2) is completed.

As described above, the label body 101 is attached to the shaft-shaped work 1 as the torque sensor shaft to be used as a masking sheet for shot blasting. FIGS. 4 (a) to 4 (d) show an outline of a process of turning a shaft-shaped work 1 into a torque sensor shaft through shot blasting or the like.
The work 1 shown in FIG. 4 has a hollow shaft shape, and as shown in FIG. 4A, there is a forming portion 1a for forming a magnetostrictive portion in the middle in the length direction. As shown in FIG. 4B, a metallic glass film 1b having a high magnetic permeability and a high magnetostriction is formed on the entire circumference of the forming portion 1a which is a cylindrical surface. As will be described later, the film may be formed by thermal spraying with a quenching thermal spraying device.
The label body 101 as a masking sheet is attached on the metallic glass film 1b formed on the work 1 as shown in FIG. 4 (c). Then, shot blasting is applied to the surface of the forming portion 1a of the work 1. While the metallic glass film remains in the portion covered with the label main body 101, the metallic glass film in the exposed portion at the position of the hole 101a of the label main body 101 is removed, so that the striped pattern of the label main body 101 (FIG. 1). A magnetostrictive portion 1V · 1W (see FIG. 13) having a chevron pattern similar to that (see (a)) is formed on the work 1. By removing the label body 101 (masking sheet) after shot blasting, the torque sensor shaft 1'shown in FIG. 4 (d) can be obtained.
The work 1 is generally made of carbon steel, but titanium or stainless steel may be used as the work 1. Further, although the work 1 shown in FIGS. 4 and 6 is hollow, it may be a solid one.

FIG. 5 shows a masking device 60 which is an automatic machine for attaching a label main body 101 to a work 1, and a transport pallet A and a transport device B which are means for supporting the work 1 and sequentially transporting the work 1.
The transport pallet A has a support machine A2 that can rotate around a vertical axis at the upper part, and the work 1 can be mounted on the support machine A2. The transport pallet A is placed on a lower transport device B having a transport roll B3 so that it can move in a direction perpendicular to the paper surface of FIG. 5 (details will be described later with reference to FIG. 9). Since the work 1 is mounted vertically on the support machine A2 of the transport pallet A, the work 1 can rotate about the axis and move in a direction perpendicular to the paper surface in the figure. There are a plurality of sets of support machines A2 on the transport pallet A, and the work 1 can be attached to each of them, but only one masking device 60 is installed beside the movement path of the transport pallet A. By moving the work 1 together with the transport pallet A, the plurality of works 1 are sequentially masked.

The masking device 60 peels off the label body 101 and the like one by one from the sticking labels 100 shown in FIGS. 1 and 2, and holds them by suction (negative pressure suction) to the forming portion 1a of the work 1. The work is performed by moving to and pressing and pasting on the forming portion 1a. In order to achieve such an object, the masking device 60 includes a peeling unit 61, a suction unit 62, a moving unit 63, and an operation control panel 64. A take-up reel 65 and a take-up reel 66 are also provided in order to supply the sticking label 100 and collect the mount 102 and the like after the label main body 101 is peeled off.

The details of the masking device 60 and the work 1 and the like on the support machine A2 are as shown in FIG.
The peeling portion 61 described above first has a tip plate 61a for sharply bending and feeding the mount 102 and the like. The sticking label 100 including the mount 102 is fed along the lower surface of the plate 61a, and at the tip thereof, the label body 101 and the surface layer film 103 are bent by about 150 ° so as to be inverted with the side surface facing outward. , Pulled along the upper surface of the plate 61a. The label body 101 and the surface film 103 are peeled off from the mount 102 by bending at the tip of the plate 61a. The mount 102 (including the backing reinforcing film 104) separated from the label main body 101 and the like is towed upward of the plate 61a and sent, and is collected by the take-up reel 66 described above.
Further, the peeling portion 61 is provided with an air nozzle 61b that blows compressed air toward the vicinity of the tip portion of the plate 61a. The label body 101 or the like peeled off at the tip of the plate 61a is prevented from facing toward the mount 102 (upper side in FIG. 6), so to speak, air (assist air) for assisting peeling is blown out.

The suction portion 62 of the masking device 60 is composed of a negative pressure tube 62a leading to an air pump (not shown) and a suction pad 62b at the tip thereof. The suction pad 62b has a rectangular opening substantially equal to the size of the label body 101 in one plane at the front. The label body 101 (with the surface film 103 attached) separated from the mount 102 by the peeling portion 61 can be sucked and held on the front flat surface of the suction pad 62b. In the label main body 101 in a sucked / held state, the adhesive surface peeled off from the mount 102 faces outward, and the surface layer film 103 is in contact with the suction pad 62b. The negative pressure tube 62a and the suction pad 62b have a plurality of air passages and openings so that the suction force is not lost even when the label body 101 or the like moves away from the suction pad 62b in order from the end in the length direction. It is divided.

The moving unit 63 is a means for moving the adsorbed label body 101 together with the adsorbed unit 62. Extrusion that horizontally moves the swivel cylinder 63a for swiveling the negative pressure tube 62a from the vertical state to the horizontal state shown in the figure, and the negative pressure tube 62a, the suction pad 62b, and the swivel cylinder 63a so as to be pushed out from the right position to the left in the figure. It has a cylinder 63b. The swivel cylinder 63a and the extrusion cylinder 63b are pneumatic actuators. By moving the suction portion 62 by the moving portion 63, the label main body 101 on the suction pad 62b can be moved to the surface of the forming portion 1a in the work 1 on the left side of the drawing and pressed against it. After the label main body 101 has been attached to the work 1 by the pressing or the like, the extrusion cylinder 63b and the swivel cylinder 63a can be operated in the opposite directions to return the suction portion 62 to the original position.

The work 1 has a hollow shaft shape as shown on the left side of FIG. 6, and is mounted on the support machine A2 of the transport pallet A so as to be rotatable around a vertical shaft as described with reference to FIG. That is, the rod-shaped lower holder 2B is fixed to the support machine A2, and the work 1 is attached by covering the holder 2B. An upper holder 2U having the same shape as the lower holder 2B is also attached to the upper end side of the work 1 and connected to the holder 2B. Further, a cylindrical cover 3 having the same shape is attached to each of the lower holder 2B and the upper holder 2U. The tubular cover 3 is a jig that covers both ends of the work 1 so that operations such as preheating and thermal spraying are performed only on the magnetostrictive portion forming portion 1a of the work 1. The holder 2B and the holder 2U are arranged so that their shapes when connected are vertically symmetrical, and the cylindrical cover 3 is also arranged vertically symmetrically. That is, the upper end side and the lower end side of the work 1 have the same thermal conditions (heat capacity, etc.) so that the formed portion 1a can be appropriately preheated and sprayed.

The label body 101 is attached to the work 1 in the longitudinal direction of the label body 101 while rotating the work 1 when the label body 101 is pressed against the forming portion 1a by the moving portion 63 of the masking device 60 as described above (FIG. 6). It is done by moving it in the direction perpendicular to the paper surface of. As a means for rotating the work 1 during the movement, a silicon backing plate (fixing member) 68 made of silicon (hence, non-slip between the metal material and the metal material) is attached on the support member 67 beside the masking device 60 and supported by the support member 67. A part of the machine A2 is in contact. As shown in the figure, a collar 1x is attached to the shaft portion of the support machine A2, and the outer diameter of the collar 1x is the outer diameter of the forming portion 1a of the work 1 (to be exact, 2 of the total thickness of the label body 101 and the surface film 103). If it is made the same as the outer diameter obtained by adding doubles), the support machine A2 is rolled by the backing plate 68 when moving together with the transport pallet A, and the work 1 is rotated at an appropriate speed. That is, the forming portion 1a moves while rolling with respect to the label main body 101 on the suction pad 62b without slipping, and the entire surface of the label main body 101 can be smoothly attached.

FIG. 7 shows a procedure for masking performed by the masking device 60, that is, attaching the label body 101 to the work 1 (forming portion 1a). That is, the procedure is as follows.
1) When the work 1 is conveyed together with the transfer pallet A (same as above) by the transfer device B (FIG. 5) and one of the work 1 comes to the front of the masking device 60 and stops (P1 in FIG. 7), the masking device. The reels 65 and 66 of 60 send the mount 102 for one sheet of the label body 101 to stop, and the assist air from the air nozzle 61b is also used to peel off one sheet of the label body 101 and the suction pad facing upward. Negative pressure is sucked onto 62b and it is adsorbed (P2 to P5).
2) The suction pad 62b in which the label body 101 is sucked is swiveled 90 ° to be oriented horizontally, and further pushed forward to press one end of the label body 101 against the forming portion 1a of the work 1 and partially. Paste (P6 / P7).
3) The entire surface of the label body 101 is attached to the forming portion 1a by traveling (moving) the work 1 together with the support machine A2 by the transport device B and rotating the work 1 by the backing plate 68 when the work 1 is moved (moving). P8).
4) After that, the suction pad 62b is pulled back to the rear, the negative pressure suction is stopped, and the suction pad 62b is swiveled upward to return to the original state (P9 to P12).

FIG. 8 shows a manufacturing facility including the masking device 60 described above for mass-producing the torque sensor shaft 1'according to the process shown in FIGS. 4 (a) to 4 (d). In this equipment, working devices such as a detachable device 10 for handling the work 1, a preheating device 20, a shot blasting device 30, a thermal spraying device 40, a masking device 60, a shot blasting device 70, and a cleaning device 80 are arranged as shown in the figure. Is. Shaft-shaped work 1 (see FIG. 4) for forming a torque sensor shaft is sequentially conveyed to each of the above working devices, and each work 1 is processed by each working device. By doing so, a magnetostrictive portion including a metallic glass film is formed on each work 1, and a torque sensor shaft having excellent torque detection characteristics is manufactured.

In the manufacturing equipment of FIG. 8, the work 1 is transported by using the transport pallet A and the transport device B shown in FIGS. 9A and 9B. In the transport pallet A, a support machine A2 for mounting the work 1 is rotatably provided in the frame A1, and a rotational force transmission mechanism A3 or the like is provided therein. Since 12 sets of support machines A2 are arranged on the transport pallet A, normally 12 works 1 are attached to the pallet A together with the holders 2B and 2U and the upper and lower tubular covers 3 in the state of FIGS. 5 and 6. It will be.

The transport device B is attached to the lower part of each of the work devices, and is configured so that the transport pallet A can be transported in the longitudinal direction by the transport roller B3 connected to the motor B1 and the transmission mechanism B2. There is. For the purpose of guiding the transfer of the transfer pallet A, the transfer device B is provided with a guide roller B4 on one side of the transfer path and a pressing roller B6 connected to the air cylinder B5 on the other side of the transfer path. There is. The transport pallet A is sandwiched between the rollers B4 and B6 to prevent the position from shifting to the left or right.
As a means for rotating the work 1, a motor B7 is provided in the transport device B, and a drive side joint B8 of the magnet coupling MC is attached to the upper end of the drive shaft thereof. A driven side joint A4 of the magnet coupling MC is attached to the lower end portion of the transmission mechanism B2 of the transport pallet A. As a result, when the transport pallet A is transported to a predetermined position and stopped, the support machine A2 of the transport pallet A can be rotated by the driving force of the motor B7 of the transport device B. When the work 1 is mounted on such a support machine A2, the work 1 can be rotated in each work device together with the support machine A2, so that the work (preheating, thermal spraying, masking) for forming a magnetostrictive portion on the entire circumference of a part of the support machine A2 is performed.・ Shot blast cleaning) can be carried out smoothly.

Magnetic poles are arranged separately on the facing surfaces of the drive side joint B8 and the driven side joint A4 of the magnet coupling MC in the transfer device B and the transfer pallet A as shown in FIG. 9 (c). That is, the same pole (N pole in the illustrated example) is placed in the center of both the joints B8 and A4, and the N pole and the S pole are alternately placed around the same pole.

In the manufacturing equipment of FIG. 8, in addition to the above-mentioned transport device B, traversing devices C1 and C2 for moving the transport pallet A in a direction perpendicular to the transport path by the transport device B are also arranged. By arranging such traversing devices C1 and C2 at the end of a continuous transfer path by a series of transfer devices B as shown in the figure, in this manufacturing facility, the transfer pallets A are respectively arranged along a rectangular circular path. It can be transported between working devices.

Of the plurality of working devices installed in the manufacturing facility of FIG. 8, the attachment / detachment device 10 provided at the end is for attaching / detaching the work 1 to / from the transport pallet A (FIGS. 9 and 6). .. The work 1 can be raised and lowered together with the tubular cover 3 (FIG. 6), the holder 2U, and the like, and can be attached to and detached from the holder 2B on the support machine A2.

The preheating device 20 arranged next to (downstream side) the attachment / detachment device 10 is a device that preheats the work 1 on the transport pallet A by a gas burner (not shown). Since the support machine A2 on the transport pallet A (FIGS. 9 and 6) is driven from the transport device B via the magnet coupling MC and rotates, the work 1 can be rotated and uniformly preheated.

The shot blasting device 30 and 70 are working devices configured as shown in FIG. That is, an elevating motor 33 is mounted on the support frame 31, and the elevating rod 34 is elevated by the motor 33. A blast gun 35 is provided at the tip of the elevating rod 34, whereby shot blasting is applied to the magnetostrictive portion forming portion 1a of the work 1.
In FIG. 8, the shot blasting device 30 arranged at a position adjacent to the downstream side of the preheating device 20 is used for the purpose of forming fine irregularities on the magnetostrictive portion forming portion 1a of the work 1 prior to thermal spraying. Further, the shot blasting device 70 provided on the downstream side of the masking device 60 performs shot blasting toward the forming portion 1a masked in a striped pattern on the metallic glass film after thermal spraying to remove the unmasked metallic glass film. Used for the purpose of removal.
The blast gun 35 of the shot blasting devices 30 and 70 can be moved in the arrangement direction of the work 1 by the action of the wheels 32, the motor 33, the connecting rod 34, and the like. The gas burner of the preheating device 20 and the thermal spray gun 47 of the thermal spraying device 40 described later can also be moved in the arrangement direction of the work 1 in the same manner.

The thermal spraying device 40 arranged at a position adjacent to the downstream side of the shot blasting device 30 has the configuration shown in FIGS. 11 and 12. First, as shown in FIG. 11, an actuator 45 for raising / lowering / traversing is mounted on the support frame 41 so that the raising / lowering rod 46 can be moved up and down and traversed back and forth (in the arrangement direction of the work 1), and the spraying gun is attached to the tip of the raising / lowering rod 46. 47 is provided. During thermal spraying by the thermal spray gun 47, the work 1 is rotated and the thermal spray gun 47 is moved up and down and traverses by the actuator 45, so that the magnetostrictive portion forming portion 1a of the work 1 is exposed to the thermal spray coating while controlling the temperature of the portion 1a. Is uniformly formed. Since the wheels 42 are attached to the support frame 41, the thermal spray gun 47 can be moved in the arrangement direction of the work 1.

The thermal spraying gun 47 is a powder type frame thermal spraying gun having the structure shown in FIG. 12, and can form a metallic glass (amorphous alloy) film on the surface of the shaft by rapidly cooling the flame.
As shown in the figure, the thermal spray gun 47 has a tubular body 47c or the like of a double tube, which can be said to be an external cooling device, attached to the front portion of the gun body 47a. The thermal spray gun 47 is connected to a pipe for supplying the material powder to be sprayed together with a transport gas (for example, nitrogen), a fuel (acetylene or ethylene) and oxygen supply pipe, and an internal cooling gas (for example, nitrogen) supply pipe. Has been done. There is a nozzle 47b at the front end of the thermal spray gun 47, from which the flame and the thermal spray powder material are sprayed. The internal cooling gas is blown out from a position in contact with the periphery of the nozzle 47b to cool the nozzle 47b and control the temperature of the flame. The illustrated tubular body 47c separates the flame F from the outside air in the first half portion of the flame F ejected by the spray gun 47 (the portion close to the nozzle 47b; the melting region of the material powder), and the flame is from the tip of the double tube. A cooling gas (for example, nitrogen) G is blown to the latter half of F to cool the flame F.
The thermal spray gun 47 ejects material particles having the same composition as the alloy to be a film from the nozzle 47b together with the flame F, melts the material particles with the flame F, and cools the material particles with the cooling gas G to cool the work 1. A metallic glass film can be formed on the surface. The speed of the flame F is about 30 to 40 m / s, and the temperature of the flame F is 1000 to 1200 ° C. near the center (adjusted according to the material particles). Since the flame F reaches the base material (work 1) surrounded by the tubular body 47c and the cooling gas G ejected from the tubular body 47c, the amount of oxides intervening in the metallic glass film can be suppressed.
For example, a Fe-Co-Si-B-Nb system (for example, (Fe1-xCox) 72B20Si4Nb4) metal glass film is applied to the part 1a for forming the magnetostrictive portion of the work 1 by the thermal spraying device 40 to a thickness of about 100 to 200 μm. It should be formed. This component system is preferable in that it has a high ability to form an amorphous substance, is easily made into an amorphous substance, has excellent magnetic properties, and is difficult to be plastically deformed in terms of mechanical properties.

A non-contact thermometer is arranged in the thermal spraying device 40 to measure the temperature of the surface of the work 1 (magnetostrictive portion forming portion 1a) to be sprayed. According to the measured value of the temperature, the position of the thermal spray gun 47 is deflected vertically and laterally by the actuator 45 to keep the temperature of the work 1 (magnetostrictive portion forming portion 1a) during thermal spraying constant, and thus the film is formed. The property and the degree of adhesion with the work 1 are improved.

The work 1 on which the metal glass film is formed by spraying is transported from the spraying device 40 in FIG. 8 to the adjacent cooling device 51, where it is air-cooled for a predetermined time, and then the traversing device C1 enters the work 1 on the opposite side together with the transport pallet A. It is transversely transported to the side table 52 and further transported to the masking device 60.
In the masking device 60, as described above, the label body 101 (FIG. 1) is attached on the surface of the metallic glass film (reference numeral 1b in FIG. 4B) in the work 1 (forming portion 1a) (FIG. 1). 4 (c)). The label body 101 serves as a masking sheet for shot blasting, and has a plurality of holes 101a in the same pattern as the spiral striped pattern as the magnetostrictive portion.
A means (not shown) for pressing the label main body 101 may be provided at a position adjacent to the masking device 60 or the like. The label main body 101 attached by the masking device 60 is pressed against the forming portion 1a of the work 1 by a pressing roll or the like to ensure the attached state. It may be effective depending on the properties and thickness of the label body 101, the thickness of the forming portion 1a, and the like.

As shown in FIG. 8, a shot blasting device 70 is also arranged on the downstream side of the masking device 60 with the cooling device 53 interposed therebetween. The configuration of the shot blasting device 70 is the same as that of the shot blasting device 30, and is as shown in FIG. In this device 70, the masking device 60 performs shot blasting toward the forming portion 1a (metal glass film 1b) of the work 1 to which the label body 101 or the like is attached, and the metal glass film in the hole 101a of the label body 101 is formed. To remove. Since the effect of shot blasting does not reach the portion covered with the label body 101, the metallic glass film remains in the same striped pattern (chevron pattern) as the label body 101. Since the surface film 103 laminated on the label body 101 is a soft material, it dissipates immediately after the start of shot blasting.

As shown in FIG. 8, a cleaning device 80 is arranged further downstream of the masking device 60 and the shot blasting device 70. The cleaning device 80 is a device for removing the label main body 101 (masking sheet) from the forming portion 1a after shot blasting and cleaning the surface of the forming portion 1a. In the illustrated example, a rotating roller with a wire brush is configured to be pressed against the work 1, but the label body 101 is removed by applying high-pressure water or compressed air, or the label body 101 is pressed using a solvent or the like. It may be melted.

In the manufacturing equipment of FIG. 8, the exit side table 54 is provided on the downstream side of the cleaning device 80, and the traversing device C2 is arranged on the attachment / detachment device 10 from the table 54. As a result, a plurality of torque sensor shafts 1'(see FIG. 4) that have completed the formation of the magnetostrictive portion by forming a metallic glass film, masking, shot blasting, and subsequent cleaning on the shaft-shaped work 1 are conveyed. It can be returned to the attachment / detachment device 10 together with the pallet A and collected there.

The equipment for manufacturing the torque sensor shaft 1'by performing the necessary processing on the shaft-shaped work 1 is not limited to that of FIG. For example, in order to reduce the production capacity and the equipment cost, it is possible to remove the preheating device 20, the shot blasting device 30 or 70, and the cleaning device 80 from the arrangement shown in FIG. 8 to configure the equipment. In that case, while changing the transport order of the work 1, 1) the preheating of the work 1 is performed by emitting only the flame without injecting the thermal spray material in the thermal spraying device 40, and 2) only one shot blasting device ( In 30 or 70), perform two shot blasts, one before thermal spraying (adjustment of the base of the forming portion 1a) and one after thermal spraying (pattern formation by removing a part of the film), and 3) cleaning the forming portion 1a and the like. May be performed by the worker regardless of the cleaning device 80. As a result, the torque sensor shaft 1'can be smoothly manufactured with relatively compact equipment.

As described above, as an example of use of the label main body 101, a case where the label body 101 is attached to the work 1 for masking for shot blasting by the masking device 60 in the manufacturing process of the torque sensor shaft 1'has been described. However, it is of course possible to use a sticking label having a structure similar to that of FIG. 1 and the like, including the label body with a hole, in a form different from these. That is, the sticking label of the invention can be used by using a sticking device / method other than the above for the purpose of sticking to the work 1 which is not related to the manufacture of the torque sensor shaft 1'.

1 Work 1'・ 1 ”Torque sensor shaft 1a Forming part 1b Metal glass film 1V ・ 1W Magnetostrictive part 40 Thermal spraying device 47 Thermal spraying gun 60 Masking device 61 Peeling part 62 Adsorbing part 63 Moving part 68 Fixing member (support plate)
70 Shot blasting device A Conveying pallet A2 Support machine B Conveying device 100 Label for sticking 101 Label body (masking sheet)
101a hole 102 mount 103 surface layer film 104 lining reinforcement film

Claims (9)

It has a label body that has adhesiveness on the lower surface and can be attached to the surface of the work, and a mount that is stacked on the lower surface. It is a sticking label that can be stuck on the surface of
The label body has a hole leading between the front and back surfaces, the mount is laminated on the lower surface, and a surface film having no hole is laminated on the upper surface and adhered.
The label body is a masking sheet that covers a part of the surface of the work to be shot blasted and is not removed by the shot blasting. As the holes, a plurality of parallel punched holes are formed. Have,
Further, the surface layer film has enough strength to retain the shape of the label body including the holes while the label body is peeled off from the mount and moved until it is adsorbed by the suction device and attached to the work surface. At the same time, it should be dissipated by receiving the above shot blast.
Label for sticking featuring. The label body is made of rubber or resin having a thickness of 0.1 to 1.0 mm, the surface film is made of PP having a thickness of 5 to 50 μm, and the mount can be peeled off. The sticking label according to claim 1, wherein the label is made of PET having a thickness of 50 to 100 μm and has a coating. The claim is characterized in that the mount has the same holes as the label body, and a PP lining reinforcing film having a thickness of 5 to 50 μm is laminated on the lower surface and adhered. Label for sticking described in 2 . A state in which the mount is peeled off from the sticking label according to any one of claims 1 to 3 and removed, and the label body having the surface film on the upper surface is adsorbed from the surface film side by an adsorption device and adsorbed. A method for attaching a label, which comprises moving the work together with the suction device onto the surface of the work to attach the label to the surface of the work. The work is of a shaft shape rotatably supported by a support machine, and the surface to which the label body is attached is a cylindrical surface.
The suction device keeps the label body flat and sucks it, and presses a part of the label body against the cylindrical surface of the work.
When a part of the label body is pressed against the surface of the work, the support machine moves in a direction parallel to the plane of the label body at right angles to the axis of the cylindrical surface while supporting the work. At the same time, the work is rotated so that the cylindrical surface rolls with respect to the label body without slipping .
And, when the support machine has another cylindrical surface having the same diameter on the same axis as the cylindrical surface of the work and a part of the label body is pressed against the surface of the work, the other While the cylindrical surface comes into contact with the fixing member and the support machine moves, the other cylindrical surface rolls with respect to the fixing member, so that the support machine works together with the work without using a rotation drive source. To rotate
The label affixing method according to claim 4, wherein the label is attached. As the above label for sticking,
The label body is a masking sheet that covers and protects a part of the surface of the work to be shot blasted, and the surface layer film is one that is removed by the shot blasting. The labeling method according to claim 4 or 5 . As the work, a shaft-shaped work in which a metallic glass film is formed on a cylindrical surface is used.
As the above-mentioned label for sticking, a label whose main body has a plurality of streaky punched holes extending in parallel is used.
After the label body is attached to the cylindrical surface of the work by the label attaching method according to claim 6, the label body is attached.
A method for manufacturing a torque sensor shaft, characterized in that the metallic glass film is formed into a plurality of streaky patterns extending in parallel by performing shot blasting on the cylindrical surface to which the label body is attached. .. A thermal spraying method in which a flame containing metal powder is sprayed from a thermal spray gun to melt the metal powder, and the flame is cooled by a cooling gas from the outside before it reaches the surface of the work, is used in the above column. By performing on the surface, the above metallic glass film is formed,
The method for manufacturing a torque sensor shaft according to claim 7, wherein the label body is attached to the cylindrical surface and then shot blasting is performed on the cylindrical surface. In order to carry out the method for manufacturing the torque sensor shaft according to claim 8 .
A thermal spraying device that sprays a flame containing metal powder from a thermal spray gun to melt the metal powder, and cools the flame with a cooling gas from the outside before it reaches the surface of the work. A device for attaching the label body to the columnar surface of the work and a device for performing shot blasting on the columnar surface to which the label body is attached move the work between the devices in that order. A torque sensor shaft manufacturing facility characterized by being connected by.

Images